| |
Letter 32024
Magnesium Phosphate on high strength
steel alloy
++++
Our facility has a low production manganese phosphate bath.
Currently we have a problem phosphating a small high strength alloy
part. The alloy is 9% Ni, 4% Co, 0.2% C, 200 KSI. Our ratio is 5.5 to
6, and iron is 0.25%. We are processing the part in a 3.5 L beaker
and getting zero coverage. Pretreatment is aluminum oxide blast
followed by either no activation, an acid salt, or sulfuric
bifluoride. Any suggestions?
Chuck Kacmarcik
Southwest United Industries - Tulsa, Oklahoma
Dear Reader, please --
- Answer or follow-up on this subject (in non-commercial
fashion).
-
- My company is a supporting advertiser at
finishing.com and we want the contact information to reach
the inquirer privately.
-
- Post a new
question or inquiry on a different subject.
-
 |